A review of high temperature solar driven reactor technology: 25years of experience in research and development at the Paul Scherrer Institute

Koepf, Erik; Alxneit, Ivo; Wieckert, Christian; Meier, Anton

doi:10.1016/j.apenergy.2016.11.088

Cited by 123 publications

(51 citation statements)

References 286 publications

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“…Several research papers and reports were published on progress in solar heating in recent years and a parallel trend is to develop CCHP generation systems . Solar water heater, air conditioner, or refrigerator are randomly exclaimed as the density, gravity, temperature, thermal gradient, draft, or thermosiphon driven systems …”

Section: Sun Powered Co2 Systemsmentioning

confidence: 99%

“…203,204 Several research papers and reports were published on progress in solar heating in recent years 205,206 and a parallel trend is to develop CCHP generation systems. [207][208][209][210][211] Solar water heater, air conditioner, or refrigerator are randomly exclaimed as the density, 212 gravity, 213 temperature, 214 thermal gradient, 215,216 draft, 217 or thermosiphon driven systems. 140,218,219 Solar heating and cooling systems are based on natural circulation of artificial and Natrefs such as Freon, carbon dioxide or water, and so on.…”

Section: Sun Powered Co 2 Systemsmentioning

confidence: 99%

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Review of carbon dioxide (CO ₂ ) based heating and cooling technologies: Past, present, and future outlook

2019

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Summary Refrigerants bearing high global warming potential (GWP) and ozone depletion potential (ODP) were outlawed or facing time‐beared permission under the Montreal (1987), Kyoto (1997) protocols, F‐Gas law (2015), Paris Accord (2016), and recent Kigali Amendment to Montreal Protocol (2019). In order to modify followed by the paradigm shift of existing heating and cooling systems, American Society of Heating, Refrigeration, and Air‐Conditioning Engineers (ASHRAE) envisaged natural and synthetic refrigerants (Synrefs) are under investigation globally. Carbon dioxide (CO2) is a popular natural refrigerant (Natref) replacing Synrefs used in commercial heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems globally. A rampant rise is observed in markets of Asia (Japan and China), North America (the United States and Canada), the Australian continent, and Africa (South Africa) by reaching 20 000 CO2‐stores around the globe. The European markets are leading the utilization of CO2 in the heat pump, and refrigeration, CO2 based markets estimate 14% of the total food retail stores (400 m2). Japan is the second leading market of CO2 heat pump and refrigeration with more than 10 200 CO2 condensing units. CO2 transcritical systems have a share of more than 10% in only European market (large stores); however, their share is less than 10% of total stores in other major markets of the world. New pump and compressor‐driven transcritical CO2 systems integrate ejectors, condensers, and booster systems to reduce energy consumptions, enhance efficiency, efficacy, and coefficient of performance. This article reports a critical review of the CO2 based heating, cooling, and refrigeration system and presents updated literature along with barriers and challenges on commercial use of Natref‐based heating and cooling applications worldwide.

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Section: Sun Powered Co2 Systemsmentioning

confidence: 99%

Section: Sun Powered Co 2 Systemsmentioning

confidence: 99%

Review of carbon dioxide (CO ₂ ) based heating and cooling technologies: Past, present, and future outlook

2019

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“…Design of the solar receiver, reactor or process chamber, is critically important to the utilization of solar power to drive a high temperature thermal or thermochemical process. In a review article published in 2017 by Koepf et al [18], relevant solar reactor development projects were summarized and compared.…”

Section: Process Chambers For the Thermal Dissociation Of Znomentioning

confidence: 99%

Solar Heat for Materials Processing: A Review on Recent Achievements and a Prospect on Future Trends

Rosa

2019

ChemEngineering

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Considering works published in the literature for more than a decade (period from January 2008 till June 2019), this paper provides an overview of recent applications of the so-called “solar furnaces”, their reactors, process chambers and related devices, aiming specifically at the processing of (solid) materials. Based on the author’s own experience, some prospects on future trends are also presented. The aim of this work is to demonstrate the tremendous potentialities of the usage of solar heat for materials processing, but also to reveal the necessity of further developing solar-driven high-temperature technologies (which are required to displace the use of electricity or natural gas). In particular, it is essential to improve the temperature homogeneity conditions inside reaction chambers for materials processing using solar heat. Moreover, new innovative modular systems, practical and flexible, for capture, concentration, control and conduction of concentrated solar radiation are suggested. Solar thermal technologies for the production of electricity, as well as solar thermochemical processes for production of gases or liquids, are outside the scope of this review.

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“…Solar thermochemical cycles driven based on the metal oxide (MO)-based redox reactions can split CO 2 into CO ( Fig. 1) [5,6]. The solar CO produced can be combined with the solar H 2 (produced via solar thermochemical splitting of water) for the manufacturing of the solar syngas, which can be further utilized in the catalytic Fischer-Tropsch process [7].…”

Section: Introductionmentioning

confidence: 99%

Co-precipitation synthesized nanostructured Ce0.9Ln0.05Ag0.05O2−δ materials for solar thermochemical conversion of CO2 into fuels

et al. 2020

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Synthesis, characterization, and application of Ce 0.9 Ln 0.05 Ag 0.05 O 2-d materials (where, Ln = La, Pr, Nd, Sm, Gd, Tb, Dy, Er) for the thermochemical conversion of CO 2 reported in this paper. The Ce 0.9 Ln 0.05 Ag 0.05 O 2-d materials were synthesized by using an ammonium hydroxide-driven co-precipitation method. The derived Ce 0.9 Ln 0.05 Ag 0.05 O 2-d materials were characterized via powder X-ray diffraction, scanning electron microscope, and electron diffraction spectroscopy. The characterization results indicate the formation of spherically shaped Ce 0.9 Ln 0.05 Ag 0.05 O 2-d nanostructured particles. As-prepared Ce 0.9-Ln 0.05 Ag 0.05 O 2-d materials were further tested toward multiple CO 2 splitting cycles by utilizing a thermogravimetric analyzer. The results obtained indicate that all the Ce 0.9 Ln 0.05 Ag 0.05 O 2-d materials produced higher quantities of O 2 and CO than the previously studied pure CeO 2 and lanthanide-doped ceria materials. Overall, the Ce 0.911 La 0.053 Ag 0.047 O 1.925 showed the maximum redox reactivity in terms of O 2 release (72.2 lmol/g cycle) and CO production (136.6 lmol/g cycle). List of symbols n O 2 Moles of O 2 (lmol/g) n CO Moles of CO (lmol/g) Dm loss Amount of loss in the mass (mg) Dm gain Amount of gain in the mass (mg) M O 2 Molecular weight of O 2 (g/mol) M O

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A review of high temperature solar driven reactor technology: 25years of experience in research and development at the Paul Scherrer Institute

Cited by 123 publications

References 286 publications

Review of carbon dioxide (CO ₂ ) based heating and cooling technologies: Past, present, and future outlook

Review of carbon dioxide (CO ₂ ) based heating and cooling technologies: Past, present, and future outlook

Solar Heat for Materials Processing: A Review on Recent Achievements and a Prospect on Future Trends

Co-precipitation synthesized nanostructured Ce0.9Ln0.05Ag0.05O2−δ materials for solar thermochemical conversion of CO2 into fuels

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A review of high temperature solar driven reactor technology: 25years of experience in research and development at the Paul Scherrer Institute

Cited by 123 publications

References 286 publications

Review of carbon dioxide (CO 2 ) based heating and cooling technologies: Past, present, and future outlook

Review of carbon dioxide (CO 2 ) based heating and cooling technologies: Past, present, and future outlook

Solar Heat for Materials Processing: A Review on Recent Achievements and a Prospect on Future Trends

Co-precipitation synthesized nanostructured Ce0.9Ln0.05Ag0.05O2−δ materials for solar thermochemical conversion of CO2 into fuels

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Product

Resources

About

Review of carbon dioxide (CO ₂ ) based heating and cooling technologies: Past, present, and future outlook

Review of carbon dioxide (CO ₂ ) based heating and cooling technologies: Past, present, and future outlook